SN4 ""

No	Pattern	Freq
1	have [vb pp] [adv] since	152
2	has [verb] [adv] since	61
3	had [verb] [adv] since	38
4	have [verb] [adv] since	35
5	have changed [adv] since	29
6	have change [adv] since	29
7	have [verb] ever since	22
8	have [verb] considerably since	12
9	have [verb] dramatically since	11
10	have increase [adv] since	11
11	have increased [adv] since	11
12	have grow [adv] since	10
13	have done [adv] since	10
14	have do [adv] since	10
15	have grown [adv] since	10
16	have altered [adv] since	9
17	have alter [adv] since	9
18	have [verb] [adv] since	8
19	have occur [adv] since	7
20	have occurred [adv] since	7
21	have [verb] here since	7
22	have [verb] little since	6
23	have [verb] significantly since	6
24	have improved [adv] since	6
25	have [verb] radically since	6
26	have [verb] either since	6
27	have improve [adv] since	6
28	to have [verb] [adv] since	5
29	have lived [adv] since	5
30	have [verb] steadily since	5